BEM error nested geometry

Dear Experts

I am trying to create a BEM model for an epileptic patient in which i would like to perform a source localization of the averaged spike.
Unfortunally it gives me this error that is probabily related to my original MRI (there is a big artefact that erase the whole face).
Could i fix it in some way?
Capture

(DEPRECATED) Please consider updating your geometry file to the new format 1.1 (see data/README.rst): C:\Users\ferri.brainstorm\tmp\openmeeg.geom
** This geometry is a NESTED geometry.
** Info:: Mesh name/ID : 1
** # vertices : 1922
** # triangles : 3840
** Euler characteristic : 2
** Min Area : 6.52893e-06
** Max Area : 4.34922e-05
** Info:: Mesh name/ID : 2
** # vertices : 1922
** # triangles : 3840
** Euler characteristic : 2
** Min Area : 6.21024e-06
** Max Area : 4.23565e-05
** Info:: Mesh name/ID : 3
** # vertices : 1922
** # triangles : 3840
** Euler characteristic : 2
** Min Area : 5.76598e-06
** Max Area : 0.000216536
** Info:: Domain name : Scalp
** Conductivity : 1
** Composed by interfaces : +1 -3
** Interface "1"= { mesh "1" }
** Interface "3"= { mesh "3"(outermost) }
** Info:: Domain name : Skull
** Conductivity : 0.0125
** Composed by interfaces : +2 -1
** Interface "2"= { mesh "2" }
** Interface "1"= { mesh "1" }
** Info:: Domain name : Brain
** Conductivity : 1
** Composed by interfaces : -2
** Interface "2"= { mesh "2" }
** Info:: Domain name : Air
** Conductivity : 0
** Composed by interfaces : +3
** Considered as the outermost domain.
** Interface "3"= { mesh "3"(outermost) }
** !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
** !!!!!!!!!!! WARNING !!!!!!!!!!!
** !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
** 2 meshes are intersecting !

Hello

There is a similar discussion started last week:

Can you see if changing the number of points on the various layers helps?
Or recomputing a new head surface, or trying the menu "Remesh" on the head"...

Hello Francois

Thank you so much, i have found the discussion you refered. I could fix the problem changing the head surface (less erased and less vertex) and recomputing the BEM with less points.